...another thing: there's no date on that online copy of the script (it just says "Early" on website's index next to the title). I haven't gone through the whole thing, but the bit about martial arts you reference makes me wonder if it's from *after* Fran Rubel Kuzui suggested there be martial arts in the movie and it was rewritten to include that.

http://www.whedon.info/Fran-Rubel-Kuzui-Buffy-The-Vampire.html